Abbreviation of office. / Abbreviation of offence. / Abbreviation of offender.

(title) Officer. / Office.

That is either fully on or fully off, and is used to toggle a status between on and off; as in an on-off switch / That fluctuates between a positive and negative status, as an on-off relationship

(snooker, pool) Of the cue ball: (going) into a pocket, after cannoning another ball.

(snooker, pool) The situation where the cue ball goes into a pocket after striking the object ball.

(idiomatic) Intermittently.

Away from; off.

(now colloquial) Off; from.

(suffixed to a bare infinitive) A competition [of the activity denoted by the verb], especially a final, tiebreaker, or repechage within a broader tournament.

Alternative spelling of -ov